Bayonet and side arm.



PATENTED DEC. 10, 1907 .A- KRULL. BAYONBT AND SIDE ARM.

APPLICATION FILED DEC. 21. 190.6.

ATES

UNITE AUGUST KRULL, OF ACTON, ENGLAND.

BAYONET AND SIDE ARM.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed December 21. 1906. Serial No. 348.935.

To all whom 'it may concern:

Be it known that 1, AUGUST j ect of the King of Great Britain andIreland, residing at 7 Goldsmith road, Acton, in the county ofMiddlesex, England, have invented certain new and useful Improvements inand Relating to Bayonets and Side Arms, of which the following is aspecification.

This invention relates to simple, secure and effective means forfastening bayonets or side-arms to gun barrels and stocks, and has forits object to secure bayonets and sidearms in position, so that theirdetachment during use of the weapon shall be precluded and so that theweapon shall be firmly retained in its position, while moreover thefitting shall involve the use of less metal and therefore contribute tothe lightness of the weapon.

The invention is illustrated in the accompanying drawings, in whichFigure l is a cross sectional elevation on a reduced scale of a bayonetcatch provided according to the invention in position on the rifle. Fig.2 is a detail elevation of the locking device. Fig. 3 is a sideelevation corresponding thereto. sponding to Fig. 2 showing the catch inthe unlocked position. Fig. 5 is a sectional elevation of the extremityof the hilt of a bayonet provided according to the invention. Fig. 6 isan underview plan corresponding thereto. Fig. 7 is a sectional plan fromunderneath on the line a y Fig. 1. Fig. 8 is a plan of the bayonetsecured in position on the rifle, and Fig. 9 is a view corresponding toFig. 7 of a modified form of bayonet catch.

The invention consists of an improved lock for securing the hilt of thebayonet or the end of the side-arm, so as to preclude longitudinalmovement as well as means for securing the cross piece or upper part ofthe hilt to the gun barrel, or muzzle so as to insure against itslateral movement. These effects are realized by the provision of aprojection a upon the end of the stock or upon the nose-cap b at the endof the stock which projection a is disposed in parallel with the gunbarrel 0, and is provided of an irregular cross sectional form butpreferably of cylindrical form with longitudinal external ribs as shownin the drawings. This projection a is provided with one part,advantageously the upper part (I, so as to be capable of slight rotarymovement, so that the parts of the ribs e carried by it may be displacedwith reference to the KRI'JLL, a sub-- Fig. 4 is a plan correribs uponthe stationary part, and so that thus the ribs 6 upon the movable part,may engage in an annular recess, recesses or slots f formed within theend of the hilt g of the bayonet, and thus secure it againstdisplacement.

The m0vable part (1 of the projection is formed integral with a pin itpassing through the stationary part thereof and carrying at its lowerextremity a collar or an arm 1'. upon which a button or thumb piece isprovided, which is disposed upon the face of the nosecap I) or of theend of the stock, a slot 7c being formed within the nose-cap or thestock to permit of the slight movement of the button for thedisplacement of the movable part of the projection a and the ribs eprovided upon it as aforesaid. I further provide upon the inner edge ofthe collar or arm 4'. an eccentric recess 0 within which engages aspring 1), so that the thumb piece '5 and consequently the movable partd of the projection a is pressed by the spring p into either the closedor open position and retained there thereby.

In the modified form of catch shown in Fig. 9 I provide in the collar orarm t three notches or recesses instead of the eccentric recess beforereferred to. By this means the collar 'i and the movable part d of theprojectiona can be retained in either of three positions, the middleposition corresponding to the open position of the catch. It will beunderstood that the ribs or the irregular parts of the projection may bedisposed in diametrically opposite positions, and nor mally in alinementwith the axis of the gun barrel, so that the plane of the hilt andbayonet may, when in position, pass through the axis of the barrel. Itwill however be understood that the bayonet may be disposed at the sideofthe barrel, or in any other position in which event the ribs orirregular parts of the pdrojection would be correspondingly disose P Itwill be understood that the end of the hilt g of the bayonet would beprovided with a hole or aperture m of a sectional shape corresponding tothat of the projection aforesaid, and that an annular recess or annularrecesses of slots f will be formed within this The cross piece may beprovided of the usual shape with a lug, within which a hole is formedfor passing upon the muzzle, but with a view to insure the absolutelateral rigidity of the bayonet or side-arm when fixed in position, thecross piece, instead of being provided with a lug of circular shape andprovided with a hole therein, is formed with two curved arms n which areshaped to closely embrace the muzzle c, and have their extreme edgesthickened or extended outwards.

The muzzle is provided with two fingers g which are disposed parallel tothe center of the muzzle and at a slight distance away, being sodisposed that, when the bayonet is fixed in position, they come to liebehind the arms won the cross piece aforesaid, and thus firmly retain itlaterally fixed in respect to the muzzle and yet permit of the expansionand contraction of the muzzle with reference to it. Instead of providingfinger pieces on the muzzle to engage with the arms as aforesaid, asegmental recess might be formed within a boss integrally formed orsecured to the muzzle, which recess is open towards the end of themuzzle, so that the arms aforesaid or the part of the cross piece ofcorresponding shape will be brought into position and held againstlateral displacement. It will thus be understood that the invention isnot confined to the actual form of the cross piece and of the look ashereinbefore specifically described, as the form may be substantiallymodified without departing from the invention, with a view to secure therespective effects described.

What I claim as my invention and desire to secure by Letters Patent is:

1. A bayonet catch consisting of a projection on the gun engaging with ahole or aperture within the bayonet hilt the projection being formed oftwo arts of irregular section, the upper part eing capable of rotarymovement so as to lie within a recess in the upper part of the hole oraperture substantially as described.

2. A bayonet catch consisting in combination of a projection on the gunengaging with a hole or aperture having an enlarged recess at its upperend within the bayonet hilt the projection being formed of two arts ofirregular section the upper part eing capable of rotary movement so asto lie within said recess in the upper part of the aperture, a thumbpiece fixedly connected to the upper part of the said projection andprovided with recesses and a spring adapted to engage in one or other ofsaid recesses so as to retain the thumb piece in position substantiallyas described.

3. A bayonet catch consisting in combination of a projection on the gunengaging with a hole or aperture having an enlarged recess at its upperend within the bayonet hilt the projection being formed of two partsofirregular section the upper part being capable of rotary movement soas to lie within said recess in the upper part of the aperture, a thumbpiece fixedly connected to the upper part of said projection andprovided with three recesses and a spring adapted to engage in one orother of said recesses so as to retain the thumb piece in positionsubstantially as described.

In testimony whereof I have hereunto signed my name to thisspecification in the presence of two subscribing witnesses.

AUGUST KRULL,

Witnesses:

WILLIAM EDWARD EvANs, FREDERICK CoLLINs.

